55777083489 has 24 divisors (see below), whose sum is σ = 83750415840. Its totient is φ = 37095908256.

The previous prime is 55777083433. The next prime is 55777083497. The reversal of 55777083489 is 98438077755.

55777083489 is a `hidden beast` number, since 5 + 5 + 7 + 7 + 70 + 83 + 489 = 666.

It is not a de Polignac number, because 55777083489 - 2⁷ = 55777083361 is a prime.

It is a super-2 number, since 2×55777083489² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55777083499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172092 + ... + 375725.

It is an arithmetic number, because the mean of its divisors is an integer number (3489600660).

Almost surely, 2^55777083489 is an apocalyptic number.

It is an amenable number.

55777083489 is a deficient number, since it is larger than the sum of its proper divisors (27973332351).

55777083489 is an equidigital number, since it uses as much as digits as its factorization.

55777083489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548251 (or 548239 counting only the distinct ones).

The product of its (nonzero) digits is 59270400, while the sum is 63.

The spelling of 55777083489 in words is "fifty-five billion, seven hundred seventy-seven million, eighty-three thousand, four hundred eighty-nine".